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Infineon Technologies IRL3103STRL
- Part No.:
- IRL3103STRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
IRL3103STRL.pdf
- Description:
- MOSFET N-CH 30V 64A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
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Product details
Overview
IRL3103STRL from Infineon Technologies (formerly International Rectifier) is a logic-level N-channel HEXFET® Power MOSFET in D2Pak surface-mount package, rated for 30V VDS, 12 mΩ RDS(on) at VGS = 10 V, and 64 A continuous drain current at TC = 25°C. It features fully avalanche-rated operation, fast switching (tr = 120 ns), and low gate charge (Qg = 33 nC), enabling high-efficiency DC-DC conversion in synchronous buck regulators.
For engineers reviewing the IRL3103STRL datasheet, IRL3103STRL pinout, IRL3103STRL application, or IRL3103STRL equivalent, key selection criteria include its 30V breakdown voltage, 12 mΩ on-resistance at 10 V gate drive, 175°C maximum junction temperature, avalanche energy rating (EAS = 1320 mJ), and D2Pak thermal performance (RθJC = 1.6°C/W).
Technical Context
This MOSFET employs advanced planar HEXFET processing to achieve ultra-low on-resistance per die area while maintaining rugged unclamped inductive switching capability. Its logic-level gate threshold (VGS(th) = 1.0–2.0 V) enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting.
The device integrates a fast, low-Qrr body diode (Qrr = 110–170 nC, trr = 57–86 ns) and exhibits controlled dv/dt immunity (5.0 V/ns peak diode recovery), making it suitable for hard-switched synchronous rectification and motor phase control where reverse recovery stress must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 30 V - Maximum blocking voltage for 24 V nominal bus systems with margin against transients |
| RDS(on) | 12 mΩ @ VGS = 10 V - Enables ≤0.77 W conduction loss at 64 A, critical for high-current power stages |
| ID (continuous) | 64 A @ TC = 25°C - Supports high-power loads when mounted on thermally optimized PCBs |
| Qg | 33 nC - Reduces gate drive power and enables efficient 500 kHz+ switching in SMPS designs |
| EAS | 1320 mJ - Withstands single-pulse inductive energy without failure, essential for motor drive fault tolerance |
| TJ max | +175°C - Allows operation in sealed enclosures or high-ambient industrial environments |
| dv/dt immunity | 5.0 V/ns - Limits false turn-on during high-speed commutation in half-bridge topologies |
Pinout & Package
IRL3103STRL uses the D2Pak (TO-263) surface-mount package: a 3-pin, single-die power package with exposed drain pad for low thermal resistance (RθJC = 1.6°C/W) and high-current capability. The package supports automated reflow assembly and requires recommended footprint per IR Application Note AN-994.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Tab/Pad) | Drain (D) | Electrically connected to exposed copper pad; primary heat path to PCB; must be soldered to large copper pour |
| Pin 2 | Source (S) | Power return node; connects to ground plane or low-side switch node; carries full load current |
| Pin 3 | Gate (G) | Control input; high-impedance node requiring low-inductance gate loop to minimize ringing and EMI |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | VGS(th) = 1.0–2.0 V enables direct interface with 3.3 V/5 V MCUs and PWM controllers without gate drivers |
| Ultra-low RDS(on) | 12 mΩ at 10 V reduces conduction losses by >40% vs. standard 30 V MOSFETs in 48 V input converters |
| Full avalanche rating | Rated for repetitive unclamped inductive switching (IAS = 34 A, EAR = 22 mJ), eliminating need for external snubbers |
| Low Qrr body diode | 110–170 nC reverse recovery charge minimizes shoot-through risk and improves efficiency in synchronous rectifiers |
| D2Pak thermal performance | RθJC = 1.6°C/W allows ≥94 W power dissipation with proper heatsinking-critical for compact power modules |
Applications
| Motor Drive Half-Bridge | Synchronous Buck Converter |
|---|---|
Use Scenario: High-current BLDC motor phase leg in e-bike controller operating at 24 V bus with 50 A peak phase current. IC Role / Device Role / Timing Role: Low-side switching element in half-bridge topology; handles continuous 45 A at 100°C case temperature. Use Value: 12 mΩ RDS(on) limits conduction loss to <0.6 W, reducing heatsink size by 35% versus higher-RDS(on) alternatives. | Use Scenario: Output synchronous rectifier in 12 V → 1.2 V, 60 A VRM for server CPU power delivery. IC Role / Device Role / Timing Role: Bottom FET in multiphase buck stage; switches at 600 kHz with 4.5 V gate drive from controller. Use Value: Logic-level threshold ensures full enhancement at 4.5 V, eliminating gate driver IC and saving board space. |
| Industrial DC Power Supply | Automotive Body Control Module |
Use Scenario: Primary switch in 300 W isolated forward converter for factory automation PLC power supply. IC Role / Device Role / Timing Role: Main power switch handling 64 A pulsed drain current with 220 A avalanche capability during overload. Use Value: 1320 mJ EAS withstands transformer leakage inductance energy without derating or external clamping. | Use Scenario: Load switch for headlight LED driver in 12 V automotive system with hot-swap and short-circuit protection. IC Role / Device Role / Timing Role: High-side or low-side protected switch; activated by 3.3 V CAN microcontroller GPIO. Use Value: 175°C TJ rating ensures reliability under hood temperatures up to 125°C ambient with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRL3803PBF | RDS(on) = 8.0 mΩ @ 10 V; higher gate charge (Qg = 42 nC); same D2Pak package | Better conduction loss but slower switching; suited for lower-frequency, high-current UPS inverters | Select when minimizing I²R loss dominates over switching loss and frequency is ≤100 kHz |
| STP30NF20 | VDS = 200 V; RDS(on) = 38 mΩ @ 10 V; TO-220 package; not logic-level (VGS(th) = 2–4 V) | Higher voltage rating but higher on-resistance and thermal resistance; requires gate driver for 3.3 V control | Select only when 200 V blocking is mandatory and board space allows TO-220 mounting |
Compared with IRL3103STRL, IRL3803PBF trades higher gate drive loss for lower conduction loss, while STP30NF20 sacrifices logic-level compatibility and thermal performance for extended voltage range-making IRL3103STRL optimal for compact, 24–30 V logic-driven power stages.
Availability
IRL3103STRL is available at Aetrix Electronics and suitable for motor drives, synchronous buck converters, industrial DC power supplies, and automotive body control modules requiring stable component supply and long-term manufacturability.
Supply support for IRL3103STRL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a global semiconductor leader specializing in power management, sensor, and automotive ICs, with deep expertise in silicon-based power devices and wide-bandgap solutions.
The IRL3103STRL belongs to Infineon's legacy HEXFET® logic-level MOSFET product line, engineered for high-efficiency, high-current switching in space-constrained 24–30 V systems where gate drive simplicity and thermal robustness are critical.
FAQ
Is IRL3103STRL RoHS-compliant and lead-free?
Yes. IRL3103STRL is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU. The "PbF" suffix in alternate part numbers (e.g., IRL3103SPbF) explicitly denotes lead-free construction, and the D2Pak package meets JEDEC J-STD-020 moisture sensitivity level 3 requirements.
What is the maximum safe operating frequency for IRL3103STRL in a synchronous buck converter?
Based on its 33 nC total gate charge and 120 ns rise time, IRL3103STRL supports reliable operation up to 1 MHz in well-designed layouts with low-inductance gate loops and adequate gate drive strength (≥2 A peak). Efficiency peaks between 300–600 kHz due to optimal balance of conduction and switching losses.
Can IRL3103STRL be used in parallel configurations?
Yes, but with strict layout constraints: matched gate resistors (≤1 Ω), symmetrical PCB traces, shared source Kelvin connection, and thermal coupling via common heatsink. Its positive RDS(on) temperature coefficient (0.028 V/°C) provides inherent current sharing stability up to three devices in parallel.
Does IRL3103STRL require a gate resistor, and what value is recommended?
Yes-a gate resistor is required to dampen ringing and limit peak gate current. For 5 V MCU drive, 10–22 Ω is typical; for dedicated gate drivers (e.g., IR2110), 2.2–4.7 Ω balances switching speed and EMI. Values below 1 Ω increase risk of oscillation; above 100 Ω excessively slows turn-on and increases switching loss.
IRL3103STRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 30 V
- Current - Continuous Drain (Id) @ 25°C:
- 64A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 10V
- Rds On (Max) @ Id, Vgs:
- 12mOhm @ 34A, 10V
- Vgs(th) (Max) @ Id:
- 1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 33 nC @ 4.5 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1650 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 94W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
IRL3103STRL FAQ
1.How can I place an order for IRL3103STRL through Aetrix?
Please submit a Request for Quotation (RFQ) for IRL3103STRL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IRL3103STRL reliable?
The price and inventory of IRL3103STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3103STRL is usually 5 days.
3.What payment methods are accepted for IRL3103STRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3103STRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRL3103STRL?
IRL3103STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRL3103STRL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IRL3103STRL?
For technical support, including IRL3103STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3103STRL requirements.
6.How does Aetrix verify that IRL3103STRL is sourced from the original manufacturer or authorized distributors?
All IRL3103STRL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRL3103STRL meets industry standards.
7.What is the process for return or replacement of IRL3103STRL?
All IRL3103STRL units undergo pre-shipment inspection (PSI). If there is an issue with IRL3103STRL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IRL3103STRL part is unused and in its original packaging.
Return procedure for IRL3103STRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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